US7628486B2 - Eyeglass lens processing method - Google Patents

Eyeglass lens processing method Download PDF

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Publication number
US7628486B2
US7628486B2 US11/863,610 US86361007A US7628486B2 US 7628486 B2 US7628486 B2 US 7628486B2 US 86361007 A US86361007 A US 86361007A US 7628486 B2 US7628486 B2 US 7628486B2
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Prior art keywords
modification
lens shape
data
target lens
point
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US20080088794A1 (en
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Motoshi Tanaka
Ryoji Shibata
Takayasu Yamamoto
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Nidek Co Ltd
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Nidek Co Ltd
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Assigned to NIDEK CO., LTD. reassignment NIDEK CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SHIBATA, RYOJI, TANAKA, MOTOSHI, YAMAMOTO, TAKAYASU
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B51/00—Arrangements for automatic control of a series of individual steps in grinding a workpiece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
    • B24B9/14—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms
    • B24B9/148—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms electrically, e.g. numerically, controlled

Definitions

  • the present invention relates to an eyeglass lens processing method and an eyeglass lens processing system in which the information required for processing the eyeglass lenses is transmitted through a network communication such as the internet from an optician shop, and the lens processing side processes a periphery of the eyeglass lens, based on the transmitted information.
  • the lens frame shape of an eyeglass frame having a bevel groove is measured by an eyeglass frame shape measuring instrument installed at an optician shop, the target lens shape data is transmitted to a lens factory, and a periphery of the eyeglass lens is intensively processed at the factory (e.g., refer to U.S. Pat. No. 6,379,215 (JP-A-2000-94283)).
  • the target lens shape can be modified.
  • the target lens shape can be extended in the lower direction so that the distance and near zones may be appropriately contained within the lens.
  • the target lens shape may have the vertical width and the horizontal width of the target lens shape increased or decreased in fashionable manner. Therefore, a method for placing an order for processing the lens by modifying the target lens shape to the factory has been offered (e.g., refer to U.S. Pat. No. 6,142,628 (U.S. Pat. No. 3,250,184)).
  • the target lens shape data modified at the optician shop can be transmitted to the factory, if there is original target lens shape data at the optician shop.
  • the original target lens shape data is not stored in the database, a dedicated on-line system has to be constructed to send for data from the maker. This needs a great capital investment.
  • In the communication by mail transfer through the general provider of the internet connection service it takes a long time to send for target lens shape data, so that an immediate action may not be taken.
  • a demo lens mounted on the eyeglass frame may be removed, and measured by the eyeglass frame shape measuring instrument, in which the measured data is made original target lens shape data.
  • the measured data is made original target lens shape data.
  • the measured target lens shape may have an error in the horizontal direction.
  • the lens processed according to the target lens shape data may contain an axial dislocation.
  • the nylol frame has a part that can not be modified.
  • the operator of the optician shop is not easy to design a great-looking target lens shape modification in view of this part.
  • the two-point frame it is not easy to appropriately set up the great-looking target lens shape modification or the hole position at which the frame is mounted.
  • the invention has the following constitution.
  • the calculation step includes a step of calculating the modified target lens shape by obtaining shift data of each point on the original target lens shape based on data of the modification amount, with the points on both sides of the modifiable range as start points of modification.
  • FIG. 1 shows an overall configuration view of an eyeglass lens communication processing system according to the present invention.
  • FIG. 2 shows a view for explaining an input screen for layout data and the processing conditions.
  • FIG. 3 shows a view for explaining an input screen for frame designation information and so forth.
  • FIG. 4 shows a view for explaining an input screen for inputting target lens shape modification data.
  • FIG. 5 shows a view for explaining the target lens shape modification of a two-point frame.
  • FIG. 6 shows a view for explaining the target lens shape modification of a nylol frame.
  • FIGS. 7A and 7B show views of enlarging the essential part of the target lens shape modification of the nylol frame.
  • FIG. 8 shows a view for explaining a processing for hole positions in the target lens shape modification of the two-point frame.
  • FIG. 9 shows a first view for explaining the modification of the two-point frame on the nose side.
  • FIG. 10 shows a second view for explaining the modification of the two-point frame on the nose side.
  • FIG. 1 is an overall configuration view of an eyeglass lens communication processing system according to the present invention.
  • An optician shop 10 on the ordering side and a factory 50 of a lens maker for actually processing the lens are connected through the internet 40 as a network communication.
  • FIG. 1 only one optician shop 10 is shown as a representative. However, a plurality of optician shops 10 are actually connected to the factory 50 .
  • a computer 11 (hereinafter referred to as an ordering PC 11 ) as a terminal unit used for ordering is installed at the optician shop 10 .
  • the ordering PC 11 is a personal computer.
  • the ordering PC 11 comprising a main body 13 having a calculation processing function, a display 14 and an input unit 15 such as a keyboard.
  • the display 14 may be employed as the input unit 15 by providing a touch panel function on the screen of the display 14 .
  • a router 20 is connected to the ordering PC 11 . Also, the router 20 is connected to a mail server 41 of a provider (provider with which the optician shop 10 contracts) on the internet 40 .
  • an eyeglass frame shape measuring instrument 22 is connected to the ordering PC 11 .
  • a target lens shape of an eyeglass frame having a lens groove is measured by the eyeglass frame shape measuring instrument 22 .
  • the measured data is inputted into the ordering PC 11 .
  • the eyeglass frame shape measuring instrument 22 can also measure the shape of a demo lens and a type plate mounted on the eyeglass frame.
  • the well-known eyeglass frame shape measuring instrument 22 is usable (e.g., refer to U.S. Pat. No. 5,333,412 (JP-A-4-93164)).
  • a computer 51 (hereinafter an ordered-receiving PC 51 ) as an order accepting terminal unit is installed at the factory 50 .
  • the ordered-receiving PC 51 is a personal computer comprising a main body 53 , a display 54 and an input unit 55 such as a keyboard.
  • a router 60 is connected to the ordered-receiving PC 51 .
  • the router 60 is connected to a mail server 42 of a provider (provider with which the factory 50 contracts) on the internet 40 .
  • a database 70 , an eyeglass lens periphery processing device 80 and a blocker 90 are connected to the ordered-receiving PC 51 .
  • the ordered-receiving PC 51 also serves as a calculation control unit that calculates necessary data for processing and sends it to the processing device 80 and the blocker 90 .
  • This control unit may be provided separately from the ordered-receiving PC 51 . Only one processing device 80 is shown is FIG. 1 . However, a plurality of processing devices 80 are actually connected.
  • the database 70 stores a number of eyeglass frame information and lens information.
  • the information stored in the database 70 includes original target lens shape data of a rimless frame (type in which no lens groove is formed over an entire periphery of the lens periphery such as a two-point frame and a nylol frame in this specification), mounting hole data (hole position, hole diameter, hole depth, etc.) on the lens in the two-point frame, groove data (groove width, groove depth, fixed position data in the case of target lens shape modification, etc.) in the nylol frame, and the non-modifiable range (or modifiable range) in the nylol frame. They are stored associated with the type number for identifying the eyeglass frame in the database 70 .
  • the processing device 80 has a lens chuck shaft that chucks the eyeglass lens. And the processing device 80 comprises a lens periphery processing mechanism 81 for performing the roughing, bevel-finishing and flat-finishing for the periphery of the eyeglass lens held on the lens chuck shaft, a drilling mechanism 82 for drilling a hole for mounting the two-point frame on a retracting interface of lens, a grooving mechanism 83 for grooving the lens periphery subjected to the flat-finishing, and a lens shape measuring mechanism 84 for measuring the shape of fore side refracting interface and back side refracting interface of lens.
  • This processing device 80 as described in U.S. Pat. No. 6,790,124 (JP-A-2003-145328), for example, can be employed.
  • the drilling mechanism 82 and the grooving mechanism 83 can be constructed as another device from the lens periphery processing mechanism 81 .
  • the blocker 90 has a mechanism for mounting a cup (jig for holding the lens on the lens chuck shaft of the processing device 80 ) on the front surface of lens based on the target lens shape data, and layout data of optical center with respect to the target lens shape center. Also, the blocker 90 has a mechanism for detecting the optical center of lens and an astigmatism axis direction. With this detection mechanism, a mark point of a lens meter can be omitted in mounting the cup (e.g. t refer to U.S. Pat. No. 6,798,501 (JP-A-2001-62688).
  • FIG. 2 shows a main input screen 500 for inputting the layout data and the processing conditions which are displayed on the display 14 of the ordering PC 11 .
  • the target lens shape graphics FT are displayed on the upper part of a main screen. Or if the original target lens shape is stored in the main body 13 , the original target lens shape is called. However, in the two-point frame or nylol frame, the original target lens shape of that frame is stored in the database 70 of the factory 50 . Therefore, the target lens shape data may not be provided at the optician shop 10 . In this case, layout data can be inputted even if the target lens shape data is not displayed. As the sample data, the target lens shape graphics FT approximate to the target lens shape of the frame selected by the wearer may be called from the memory of the main body 13 and displayed.
  • a PD value (pupil-to-pupil distance) of the wearer is inputted into an input field 515 a . Further, the height of an optical center Eo relative to the geometric center FC of the target lens shape is inputted into an input field 515 b .
  • An FPD distance between right and left frame centers, which is stored as frame information in the database 70 of the factory 50 , is usable.
  • the processing conditions including the lens material, target lens shape (fixed focal length lens, bifocal lens, graduated lens etc.), frame type (metal, call, two-point, nylol, etc.), presence or absence of polishing, presence or absence of chamfering can be inputted by using the buttons on the lower part of the screen.
  • FIG. 3 shows an input screen 530 for inputting the prescribed values such as information identifying the frame, target lens shape, and lens power.
  • This input screen 530 is displayed by pressing the button 502 on the screen.
  • the frame maker and its type number as identifying information of frame can be inputted from an input field 531 . If the frame is dispatched from the optician shop 10 to the factory 50 , and an order of assembling the processed lens into the frame is placed to the factory 50 , an input field 532 is checked. Also, the type, material and coating of the ordered lens can be inputted into the input fields 535 .
  • the prescribed powers (spherical power, cylindrical power, axial angle etc.) of the right and left lenses can be inputted in the input fields 537 .
  • the main screen 500 is displayed by the button 501 (see FIG. 2 ). If a send button 517 on the screen is pressed, the ordering data is sent from the ordering PC 11 to the mail server 41 . Further, it is delivered to the mail server 42 in accordance with the registered mail address of the factory 10 . The ordering data stored in the mail server 42 is sent to the ordered-receiving PC 51 when the ordered-receiving PC 51 at the factory 50 gains access to the mail server 42 .
  • the original target lens shape data and FPD stored in the database 70 are specified based on the identifying information of frame. Also, in the case of the two-point frame, hole data is specified. And these data are sent to the processing device 80 .
  • the target lens shape processing data and drilling data are calculated based on the sent data, whereby the lens periphery processing and drilling are performed.
  • groove data is called from the database 70 .
  • the target lens shape processing data and grooving data are calculated based on the sent data, whereby the lens periphery processing and grooving are performed.
  • FIG. 4 shows an input screen 550 for inputting the target lens shape modification data.
  • This input screen 550 is displayed by selecting a target lens shape modification button 523 in the menu field that pops up when the menu button 520 is selected on the main input screen 500 .
  • the target lens shape modification screen 550 is provided with an input field 561 for changing the size of entire breadth (in the lateral direction), an input field 563 a for changing the size of horizontal length (in the right direction) on the nose side, an input field 563 b for changing the size of horizontal length (in the left direction) on the ear side, an input field 565 for changing the size of entire length (in the vertical direction), an input field 567 a for changing the size of upper length (in the upper direction), and an input field 567 b for changing the size of lower length (in the lower direction) for the original target lens shape.
  • the operator inputs each of the longitudinal and transversal directions (vertical and horizontal directions) of the target lens shape modification for the or original target lens shape size, and the modification amount (increase amount/decrease amount) in each direction.
  • the target lens shape graphic FT on the screen is sample target lens shape here.
  • the sample target lens shape can be called by selecting the closest target lens shape from among the target lens shapes stored in the ordering PC 11 .
  • the demo lens mounted on the rimless frame may be measured by the eyeglass frame shape measuring instrument 22 and the target lens shape data nay be used.
  • the input of modification amount into each input field may be made by checking each input field after designating a plus button 571 a or minus button 571 b . Thereby, the change amount can be increased or decreased at a predetermined step width D.
  • the step width D can be set to 0.10 mm, 0.25 mm or 0.50 mm by a button 573 .
  • the input data is stored in a memory of the ordered-receiving PC 51 .
  • the screen of the display 14 is switched to the main input screen 500 .
  • the PD value of the wearer, and the height data of the optical center with respect to the geometric center FC of the original target lens shape are inputted as the layout data, like the original target lens shape.
  • the FPD which is stored associated with the identifying information of the frame in the database 70 of the factory 50 can be used, and is unnecessary to input.
  • the processing conditions include the lens material, target lens shape, frame type, presence or absence of polishing, and presence or absence of chamfering are inputted by using the buttons on the lower part of the screen.
  • the ordering data can be inputted by inputting the prescribed values such as the identifying information of frame (maker and type number of frame), target lens shape and lens power on the input screen 530 of FIG. 3 .
  • the ordering data such as the inputted target lens shape modification data, identifying information of frame and so forth is appended from the ordered-receiving PC 11 to the mail. And the mail is transmitted through the internet 40 to the ordered-receiving PC 51 at the factory 10 . And on the ordered-receiving PC 51 , the original target lens shape data stored in the database 70 is called based on the identifying information of frame, and a calculation process for target lens shape modification is performed based on the target lens shape modification data.
  • target lens shape modification The calculation process for target lens shape modification will be described below.
  • the two-point frame is designated as the frame type
  • the multi-focal lens is designated as the target lens shape.
  • data of the original target lens shape lengthened by ⁇ d (mm) in the lower direction is set as the modification amount data of target lens shape modification.
  • FIG. 5 shows a target lens shape modification process at this time.
  • the target lens shape center (geometric center) of the original target lens shape FTo as indicated by the solid line is FCo.
  • FCo the target lens shape center
  • the x coordinate is taken in the transverse direction (horizontal direction), and the y coordinate is taken in the vertical direction.
  • the point (right inflection point) at which the x coordinates of the target lens shape FTo is maximum is Pa(Pax, Pay).
  • the point (left inflection point) at which the x coordinate is minimum is Pb(Pbx,Pby).
  • the point (lower inflection point) at which the y coordinate is minimum is Pc (Pcx, Pcy). It is assumed that the point to which the point Pc is moved by a modification amount ⁇ d in the lower direction of the y coordinate is pc(pcx, pcy).
  • a modification ratio ka at this time is the ratio of the distance between point Pa and point pc to the distance between point Pa and point Pc in the y axis direction. That is, the ratio ka is represented by
  • This computation is performed at each point on the target lens shape FTo between point Pa and point Pc.
  • the target lens shape modification between point Pa and point Pc is obtained as indicated by the chain double-dashed line Ft.
  • a modification ratio kb at this time is the ratio of the distance between point Pb and point pc to the distance between point Pb and point Pc in the y axis direction.
  • the ratio kb is represented by
  • the point Pbcn(Pbcnx,Pbcny) on the target lens shape FTo between point Pb and point Pc is moved in the lower direction of the y axis.
  • the point is modified downwards with the inflection points Pa and Pb as the start points of modification.
  • the modified target lens shape Ft has a smooth shape without concavity and distortion.
  • the points (not inflection point) on the target lens shape FTo through which the x axis passes are the start points of modification with reference to the target lens shape center FCo will be described below.
  • the start point is depressed, and the shape does not become smooth.
  • the great-looking target lens shape modification is allowed by the above method.
  • the operator at the optician shop may send the modification direction and its modification amount as the target lens shape modification data to the factory without having the original target lens shape data.
  • FIG. 6 is a view for explaining the calculation process for target lens shape modification of the nylol frame.
  • the rim part is a non-modifiable range. Therefore, the modifiable range is the area excluding the rim part.
  • the rim part is the part of the upper area FTo 1 from point Pe to point Pf on the original target lens shape.
  • the lower area FTo 2 is the modification area.
  • This modifiable range data is stored in the database 70 together with the original target lens shape in connection with the identifying information of the frame.
  • the points Pe and Pf at both ends of the modifiable range FTo 2 are called from the database 70 if the nylol frame is designated, And the data lengthened by ⁇ d (mm) in the lower direction of the original target lens shape is set as the modification amount data of target lens shape modification.
  • the target lens shape center FCo of the original target lens shape is the origin of the xy coordinates.
  • the x coordinate is taken in the transverse direction (horizontal direction), and the y coordinate is taken in the vertical direction.
  • Pg the point (lower inflection point) at which the y coordinate on the modification area FTo 2 is minimum.
  • the point to which the point Pg is moved by the modification amount ⁇ d in the lower direction of y axis is pg.
  • FIG. 7A is a view for explaining the modification of the area from point Pe to point Pg.
  • the point Pe is not the right inflection point at which the x coordinate is maximum. Therefore, if the point is directly modified at the ratio in the y axis direction (see the explanation of FIG. 5 ), a concavity occurs in the modified shape at the point Pe.
  • the modification in the direction parallel to the tangential line Lte at the point Pe is considered.
  • each point between point Pe and point Pg is moved in accordance with the ratio of modification (in the same way of thinking as in FIG. 5 )
  • each point may be contracted at the ratio of modification in the direction parallel to the straight line Lre (vertical line of the tangential line Lte) with reference to the tangential line Lte (in the same way of thinking as in FIG. 5 ).
  • each point of the entire target lens shape is rotated by angle ⁇ (angle of the tangential line Lte to the y axis direction) with reference to the target lens shape center FCo.
  • the translation occurs so that the tangential line Lte may be parallel to the y axis as shown in FIG. 7B .
  • the points after translating the points Pe, Pg and pg are points Pet(Petx,Pety), Pgt(Pgtx,Pgty) and pgt(pgtx,pgty).
  • the point pht(phtx,phty) is the point to which the point Pgt is changed in the direction of tangential line Lte.
  • the point Pgt is finally moved to the point pgt. Therefore, it is considered that the point Pgt is moved to the point pht in the first modification.
  • the distance of line segment Pgt-pgt is the modification amount ⁇ d.
  • the movement front the point pht to the point pgt is considered.
  • the modification of the area from remaining point Pf to point Pg is firstly considered in the direction parallel to the tangential line at the point Pf. And each point between point Pf and point Pg is moved by applying the same calculation method, so that the modified target lens shape is obtained.
  • the predetermined modifiable range data on the original target lens shape is called from the database.
  • the modified target lens shape is calculated with both ends as the start points of modification.
  • the modification is once calculated in the direction parallel to the tangential direction (Lte) at the modification start point.
  • the modification to the vertical direction (direction parallel to the straight line Lre) of the tangential direction Lte is calculated.
  • the modified target lens shape has a smooth shape without concavity at both ends in the modifiable range.
  • the point (pg) to which the inflection point (Pg) is moved downward in the modification direction also maintains the inflection point in the lower direction.
  • the operator of the optician shop does not need to make conscious of the modifiable range in inputting the modification data of the nylol frame.
  • the operator can easily send the modification data of target lens shape to the factory by simply inputting the modification direction and its modification amount.
  • the target lens shape modification data is set to extend the original target lens shape FTo by the modification amount ⁇ d in the transverse direction on the ear side as shown in FIG. 8 .
  • the xy coordinates are set with reference to the target lens shape center FCo of the target lens shape FTo.
  • a method for target lens shape modification is the inflection point Pa at which the y coordinate of the target lens shape FTo is minimum and the inflection point Ph at which the y coordinate is maximum are the start points of modification in the same way as in FIG. 5 .
  • the inflection point Pb at which the x coordinate is minimum is moved by the modification amount ⁇ d to the point pt in the left transverse direction, whereby the modified target lens shape Ft is calculated.
  • the hole position often refers to the edge of lens.
  • the hole position H 1 (H 1 x , H 1 y ) is set at the position off distance Dh in the plus direction of the x axis with reference to the edge point Pi (Pix, Piy) of the original target lens shape FTo in the horizontal direction to the x axis.
  • the modified hole position is set at the position h 1 (h 1 x , h 1 y ) off distance Dh in the plus direction of the x axis with reference to this point pi. That is, when the target lens shape edge on which the hole position is based is moved due to modification, the hole position is also moved according to its modification. In this manner, the coordinates of the hole position h 1 after target lens shape modification are recalculated.
  • FCot is the geometric center of the modified target lens shape Ft.
  • the modified target lens shape Ft is subjected to the coordinate transformation with the reference to the center FCot.
  • the left target lens shape is obtained as the shape of mirroring the right target lens shape Ft to the left or right.
  • the center distance FPDt between the right and left target lens shapes is recalculated from the center distance FPD (stored associated with the identifying information of the frame in the database 70 ) of original target lens shapes based on the modification amount d.
  • the layout position of the optical center Eo of lens for the modified target lens shape Ft is transformed so that the positional relation to the center FCo of the original target lens shape may be unchanged. Thereby, the hole position h 1 after target lens shape modification and the position of the optical center Ec are appropriately managed.
  • the center distance FPDt between the right and left target lens shapes after target lens shape modification is also appropriately managed.
  • FIG. 9 is shows a case where the target lens shape modification data is set to extend the original target lens shape FTo by the modification amount ⁇ d in the transverse direction on the nose side.
  • the modified target lens shape Ft is obtained, with the lower inflection point Pc and the upper inflection point Ph as the start points of modification, so that the inflection point Pa of the x coordinate may be extended by the modification amount ⁇ d.
  • the target lens shape edge with reference to the hole position is moved for the hole position H 2 on the nose side due to modification. Therefore, the hole position H 2 is also moved to the hole position h 2 according to the modification.
  • the target lens shape center FCot of the modified target lens shape Ft is recalculated based on the modified target lens shape Ft.
  • the hole position H 2 on the nose side is not changed with respect to the center FCo of the original target lens shape. Therefore, for the modified target lens shape center FCot, the center distance FPDt between the right and left target lens shapes only considers the change amount of the original target lens shape FT with respect to the FPD.
  • FIG. 9 when the hole position H 2 on the nose side is changed to the hole position h 2 in accordance with the target lens shape modification the computation in consideration of this is required. That is, the right and left lenses are connected by a bridge BL in the two-point frame as shown in FIG. 10 .
  • the target lens shape center distance FPDt after target lens shape modification is obtained as the distance between the right and left target lens shape centers FCot in the state the modified target lens shape Ft is arranged while maintaining the distance DBL.
  • the setting reference of the hole position H 2 is the target lens shape edge position Ph in the horizontal direction
  • the arrangement of the target lens shape Ft with the bridge BL is decided with reference to the edge position ph of the modified target lens shape Ft.
  • the hole position h 2 is set at the position the distance Dh away from the edge position ph.
  • the layout data of the optical center Eo to the target lens shape center FCot after target lens shape modification is computed based on the center distance FPDt between the right and left target lens shapes and PD (pupil-to-pupil distance of the wearer) and the height data of the optical center Eo (which is height data from the target lens shape center FCo of the original target lens shape FT) transmitted from the optician shop 10 .
  • This result is displayed on the display 54 .
  • the modified target lens shape data and the layout data are transmitted to the processing device 80 and a blocker 90 .
  • the modified target lens shape data and the layout data are used as guide data in fixing (aligning) a cup.
  • the modified target lens shape data and the layout data are inputted into the processing device 80 .
  • the lens shape measuring mechanism 84 measures the edge position of the front face and back face of lens, based on the target lens shape data. Also, the hole position of the front face of lens is measured based on the hole position data.
  • the drilling mechanism 82 drills the hole based on the drilling data.
  • a grooving locus for groove processing is calculated based on the edge position data of the front face and back face of lens by the lens shape measuring mechanism 84 .
  • the groove is processed on the periphery of lens by the grooving mechanism 83 , based on the grooving locus and the groove related information such as the groove depth and groove width called from the database 70 .
  • the processed lens is delivered to the optician shop, based on the ordering data.
  • the processed lens is assembled and delivered.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Eyeglasses (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
US11/863,610 2006-09-29 2007-09-28 Eyeglass lens processing method Expired - Fee Related US7628486B2 (en)

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Application Number Priority Date Filing Date Title
JP2006-270120 2006-09-29
JP2006270120A JP5065645B2 (ja) 2006-09-29 2006-09-29 眼鏡レンズ加工方法及び眼鏡レンズ加工システム

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100184356A1 (en) * 2009-01-21 2010-07-22 Essilor International (Compagnie Generale D'optique) Device for machining an ophthalmic lens
US20110066276A1 (en) * 2009-09-14 2011-03-17 Essilor International (Compagnie Generale D'optique) Method for generating a trimming setpoint for an ophtalmic lens
US20220397389A1 (en) * 2021-06-11 2022-12-15 Optinno BV Spectacle lens shape measurement method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2911696B1 (fr) * 2007-01-24 2009-10-30 Essilor Int Verre ophtalmique progressif a inset personnalise.
JP5905248B2 (ja) * 2011-12-12 2016-04-20 Hoya株式会社 眼鏡レンズ受発注システム、眼鏡レンズ発注プログラムおよび眼鏡レンズ発注方法
WO2016125798A1 (ja) * 2015-02-04 2016-08-11 株式会社ニデック 眼鏡レンズ加工用システム、眼鏡レンズ加工用装置、眼鏡レンズ加工用端末装置、眼鏡レンズ加工用プログラム、および眼鏡レンズ加工方法

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0576268A1 (en) 1992-06-24 1993-12-29 Hoya Corporation Spectacle lens production
US5333412A (en) 1990-08-09 1994-08-02 Nidek Co., Ltd. Apparatus for and method of obtaining processing information for fitting lenses in eyeglasses frame and eyeglasses grinding machine
JPH07186027A (ja) 1993-12-28 1995-07-25 Topcon Corp レンズ研削加工システム
EP0710526A1 (en) 1994-10-31 1996-05-08 Nikon Corporation Spectacle lens and manufacturing method thereof
US6142628A (en) 1998-02-03 2000-11-07 Saigo; Tsuyoshi Eyeglasses try-on simulation system
US6379215B1 (en) 1998-09-29 2002-04-30 Nidek Co., Ltd. Eyeglass lens processing system
EP1298483A2 (en) 2001-09-28 2003-04-02 Nidek Co., Ltd. Dyeing system for lens and ordering system for colored lens
US6790124B2 (en) 2001-11-08 2004-09-14 Nidek Co., Ltd. Eyeglass lens processing apparatus
US6798501B1 (en) 1998-01-30 2004-09-28 Nidek Co., Ltd. Cup attaching apparatus
EP1728467A1 (en) 2004-03-26 2006-12-06 Hoya Corporation Spectacle lens supply system, spectacle wearing parameter measurement device, spectacle wearing inspection system, spectacle lens, and spectacle
US20080033836A1 (en) * 2006-08-03 2008-02-07 Seiko Epson Corporation Lens order system, lens order method, lens order program and recording medium storing the lens order program
US20080218690A1 (en) * 2006-07-31 2008-09-11 Nidek Co., Ltd. Eyeglass lens processing method
US7448938B2 (en) * 2003-11-05 2008-11-11 Hoya Corporation Method for supplying spectacle lens

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0811351B2 (ja) * 1990-04-27 1996-02-07 株式会社トプコン 眼鏡レンズ加工システム
JPH0592173A (ja) * 1991-09-30 1993-04-16 Nisshin Steel Co Ltd 加工部耐黒変性、塗膜密着性および耐食性に優れた表面処理鋼板
JP3785396B2 (ja) * 1997-05-16 2006-06-14 Ｈｏｙａ株式会社 眼鏡のオーダーメイドシステム
JP4186766B2 (ja) * 2003-09-12 2008-11-26 セイコーエプソン株式会社 眼鏡レンズの製造システム及び眼鏡レンズの製造方法
JP4708035B2 (ja) * 2005-01-06 2011-06-22 株式会社ニデック 眼鏡レンズ加工装置
JP4786988B2 (ja) * 2005-02-04 2011-10-05 株式会社トプコン 眼鏡フレームの玉型形状表示装置及びレンズ研削加工装置

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5333412A (en) 1990-08-09 1994-08-02 Nidek Co., Ltd. Apparatus for and method of obtaining processing information for fitting lenses in eyeglasses frame and eyeglasses grinding machine
EP0576268A1 (en) 1992-06-24 1993-12-29 Hoya Corporation Spectacle lens production
JPH07186027A (ja) 1993-12-28 1995-07-25 Topcon Corp レンズ研削加工システム
EP0710526A1 (en) 1994-10-31 1996-05-08 Nikon Corporation Spectacle lens and manufacturing method thereof
US6798501B1 (en) 1998-01-30 2004-09-28 Nidek Co., Ltd. Cup attaching apparatus
US6142628A (en) 1998-02-03 2000-11-07 Saigo; Tsuyoshi Eyeglasses try-on simulation system
US6379215B1 (en) 1998-09-29 2002-04-30 Nidek Co., Ltd. Eyeglass lens processing system
EP1298483A2 (en) 2001-09-28 2003-04-02 Nidek Co., Ltd. Dyeing system for lens and ordering system for colored lens
US6790124B2 (en) 2001-11-08 2004-09-14 Nidek Co., Ltd. Eyeglass lens processing apparatus
US7448938B2 (en) * 2003-11-05 2008-11-11 Hoya Corporation Method for supplying spectacle lens
EP1728467A1 (en) 2004-03-26 2006-12-06 Hoya Corporation Spectacle lens supply system, spectacle wearing parameter measurement device, spectacle wearing inspection system, spectacle lens, and spectacle
US20080218690A1 (en) * 2006-07-31 2008-09-11 Nidek Co., Ltd. Eyeglass lens processing method
US20080033836A1 (en) * 2006-08-03 2008-02-07 Seiko Epson Corporation Lens order system, lens order method, lens order program and recording medium storing the lens order program

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Extended European Search Report dated Feb. 12, 2008.

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100184356A1 (en) * 2009-01-21 2010-07-22 Essilor International (Compagnie Generale D'optique) Device for machining an ophthalmic lens
US8460056B2 (en) * 2009-01-21 2013-06-11 Essilor International (Compagnie Generale D'optique) Device for machining an ophthalmic lens
US20110066276A1 (en) * 2009-09-14 2011-03-17 Essilor International (Compagnie Generale D'optique) Method for generating a trimming setpoint for an ophtalmic lens
US8352065B2 (en) * 2009-09-14 2013-01-08 Essilor International (Compagnie Generale D'optique) Method for generating a trimming setpoint for an ophthalmic lens
US20220397389A1 (en) * 2021-06-11 2022-12-15 Optinno BV Spectacle lens shape measurement method
US12247826B2 (en) * 2021-06-11 2025-03-11 Optinno BV Spectacle lens shape measurement method

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US20080088794A1 (en) 2008-04-17

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